In olympic bobsled competition a team takes a turn of

Question

1. How far apart should a 8 ton weight be from a 3 ton weight if their mutual attraction is equal to 0.0016 lb?
2. A wheel of radius 18 cm starts from rest and makes 2.20 revolutions in 3.00 seconds. A)What is its average angular velocity in radians per second? B)What is the final linear velocity of a point on the rim of the wheel?
3. A 1.3 kg bicycle wheel has a radius of 60 cm with spokes of negligible weight. If it starts from rest and receives an angular acceleration of 3 rad/s², what will be its rotational kinetic energy after 4 s?
4. In Olympic bobsled competition, a team takes a turn of radius 21 ft at a speed of 45 mi/h. A) What is the acceleration? B)How many g's do the passengers experience?
5. The coefficient of restitution for steel is 0.92. If a steel ball is dropped from a height of 9 m, how high will it rebound?